Unitary tap bush



Feb. 3,1942. J, CFMULLEN 2,271,950

UNITARY TAP BUSH Filed Nov. 21, 1939 Tiqflzl. INVENTOR JAMES C. MULLEN Wr'm . TORN Y Patented Feb. 3, 1942 James C. Mullen, Cliffside Park, N. .1. Application November 21, 1939, Serial No. 305,445

7 1 Claim. (01.

This invention relates to tap bushings and the method of securing the tap bushings in place f and has more particular reference to tap bushings adapted for barrel use, more especially beer barrels.

In the co-pending application of J ames" C. Mul- 1 len for Tap bushing, Serial No. 292,396, filed August 29, 1939, there is disclosed a tap-bushing with a separable flange adapted to be securedto a flanged sleeve for clamping the opposite sides of a barrel part. 1

The present invention provides a one piec malleable bushing in which one of the flanges is spun or rolled over a sufficient distance to provide a relatively wide flange to efiect an adequate clamping and sealing action while at the same time affording means for firmly pressing the flange against the barrel part. To achieve this wide, flange adapted to be forced firmly against the barrel part and thereby securely seal the barrel part is one of the objects of the invention. o

Other objects will become apparent as the description of the particular embodiments chosen to illustrate the invention progresses.

While one embodiment of this invention is illustrated in the accompanying drawing, it is to be understood that such embodiments merely serve as an illustration of the underlying principles of the invention so that it may be'readily comprehended by those skilled in the art, and is not intended as limiting the invention to the specific details disclosed therein.

In said drawing:

Fig. l is a top plan view of the invention as applied to a barrel or keg head,

Fig. 2 is a section of Fig. 1 on the line 22, and

Fig. 3 is a perspective view of the tap bushing with the flange in rolled down position.

, Continuing now by way of a moredetailed description, a bushing comprises a hollow, preferably tapered cylindrical portion or sleeve A having a peripheral flange B. The sleeve A is adapted to be inserted in a barrel opening C preferably countersunk at C" in the barrel part D. A tool engaging capstan head E having a longitudinal hole is axially disposed in the cylindrical portion or sleeve A and is connected thereto by 'a horizontally disposed web F. The head, may and preferably does have oppositely disposed tool engaging openings'G and H. This capstan head and the tool engaging openings maybe used for conveniently engaging the bush and forcing it into place, the capstan head and tool engaging openings G and H also forming 'a'means for holding the tap bushing while the rolling operation to be hereinafter described takes place. The sleeve A initially projects beyond the barrel part B to be clamped. The projecting end of the sleeve A is rolled over or spun to the clamping position shown in the drawing. By rolling the sleeve in the manner indicated an improved sealing effect over that of a separate ring is achieved. With the separate ring the effect of the clamping is limited because the inside diameter of the ring can only go as far as the point where the ring engages the tapered sleeve, whereas by. rolling the projecting end of the taper the rolling can be continued until the desired pressure is obtained. This eliminates the necessity of accurately relating the taperof the sleeve with the inside diameter of the ring and the at each end of the sleeve, a wide, flatflange,

integral therewith, and which projects peripherally outward therefrom, said flanges extending I in planes parallel respectively to the outer and inner faces of the barrel part, and being set flatly and tightly against the aforesaid faces of the barrel part. v

JAMES C. MULLEN. 

